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What is the special feature when replacing the fuel filter on a diesel engine? Friends, the most important feature of replacing the filter on a diesel engine is starting the engine after replacing the filter. If you simply start the engine after replacing the fuel filter, it will stall and starting the engine again will be problematic. How to solve this problem. As soon as you have made the replacement, you need to start the engine and immediately press the gas pedal, increasing the engine speed to 3000-3500 thousand revolutions per minute. At these speeds, you need to hold the gas pedal for about 20-30 seconds. This way, the fuel pump will create the necessary pressure, and the engine will not have time to stall. What to do if after replacing the fuel filter on a diesel engine you still did not start the power unit at high speeds and the engine stalled? All subsequent attempts to start the engine will be useless. You will only drain the battery. The first option to solve this problem is to open the fuel tank cap and, holding it with a rag, insert the compressor into the neck. Then supply compressed air to the tank, while rotating the starter. You need to repeat the attempt 2-3 times. As a rule, this is enough to successfully start the diesel engine. The second option is to disconnect the fuel hose that goes from the fuel filter to the engine. Then we connect another hose to the fuel filter and create a vacuum using the compressor's vacuum pump, the purpose of which will be to flow diesel fuel into the working tank. Then we try to start the diesel engine. You need to make 3-4 attempts. If the engine does not start, you need to repeat the procedure again. @avtorakurslive